As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS MESSAG "TAT PROBE" FOLOWED BY 'AUTOPILOT DISCONNEC' LNAV AND VNAV BECAME INOP(<P>PERFORMED T/S PER FIM 30-33 FT805, SUSPECTING TAT, RELAY K514 AND RELAY K411 TO BE FAULTINGREMOVED AND REPLACED TAT PROBE IAW AMM 34-12-02. REMOVED AND REPLACED RELAYS K 411 AND K514. OPS CHECKED GOODIAW AMM 34-12-02. </P>)